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Pulmonary artery sling (PAS) is a rare congenital heart disease in which the left pulmonary artery (LPA) originates from the right pulmonary artery (RPA) and encircles the distal trachea and right mainstem bronchus as it courses between the trachea and esophagus. Typically, patients with PAS have some respiratory symptoms, either due to external tracheal compression that can be corrected by relief of the sling mechanism, or due to severe diffuse tracheal stenosis with complete rings (ring-sling complex). The diagnosis of PAS is optimally made by echocardiography, while bronchoscopy is the key to the assessment of tracheal stenosis. Diagnosis is indication for surgery. Repair using a strategy of median sternotomy, cardiopulmonary bypass, division of the LPA and reimplantation into the main pulmonary artery (MPA), and simultaneous tracheal repair takes preference. Tracheal repair should be considered only in clinically symptomatic patients. The techniques of free tracheal autograft plasty or slide tracheoplasty offer promising results, and the choice of tracheal reconstruction should be guided by the clinical experience of the surgeon. Coexisting intracardiac pathologies are repaired at the same time. Postoperative care requires close multidisciplinary effort to achieve the best long-term result.

The Ross-Konno procedure is an excellent technique for the treatment of complex multilevel left ventricular outflow tract obstruction with severe annular hypoplasia and a dysplastic aortic valve. The operation can be performed earlier in life, thus avoiding repeated surgical reinterventions, which may provide only short-term palliation and potentially exacerbate ventricular function. The Ross-Konno procedure increases our therapeutic choices for neonates or infants with critical aortic stenosis, who show unacceptable results following open valvotomy or balloon valvotomy. The pulmonary autograft demonstrates durability without the likelihood of developing aortic stenosis or progressive dilatation and a low incidence of developing aortic insufficiency. Despite the technically demanding nature of the operation, the Ross-Konno procedure is the method of choice for the multilevel type of left ventricle outflow tract obstruction, especially in newborns and infants.